* {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
}

body {
  min-width: 1200px;
  width: 100%;
  background-color: #333333;
}

.nav {
  display: flex;
  align-items: center;
  width: 100%;
  height: 100px;
  background-color: white;
}

.nav-list {
  display: flex;
  width: 1130px;
  height: 100%;
  margin: 0 auto;
  justify-content: center;
}

.nav-list > li {
  display: flex;
  align-items: center;
  margin: 0 20px;
}

.nav-list > li a {
  color: #333333;
}

.container {
  display: flex;
  justify-content: center;
  width: 100%;
  height: 0px;
  background-color: white;
  opacity: 0;
  transition: all 0.3s ease;
}

.list {
  height: 200px;
  display: none;
  white-space: nowrap;
}

.list > li {
  display: inline-block;
  width: 200px;
  text-align: center;
}

.title {
  color: #333333;
  white-space: pre-wrap;
}

.price {
  margin: 20px;
  color: #ff6700;
}

.check {
  margin: 20px;
  color: #333333;
}

.active-nav {
  color: #ff6700 !important;
}

.active-list {
  display: flex !important;
}

.active-showList {
  height: 230px;
  opacity: 1 !important;
}

/* 作业打印格式 */
pre {
  margin-top: 300px;
}
